IL4208-X017T

Overview

The IL4208-X017T is a phototriac output optocoupler featuring an infrared LED coupled to a photosensitive thyristor. It provides 5300Vrms isolation voltage and supports up to 800V off-state voltage. The device operates with a maximum forward current of 60mA and continuous output current of 300mA. It functions within a temperature range of -55°C to +100°C, lacks zero-crossing circuitry, and utilizes a 6-pin SMD package.

Feature Summary

• Integrates an infrared LED with a photosensitive thyristor system for optical coupling
• Provides high isolation voltage capability for safety-critical applications
• Designed for low input current operation to reduce power consumption
• Features high dV/dt immunity for reliable switching in noisy environments

Applications

• Solid-state relay control circuits
• AC motor speed control systems
• Power supply feedback loops
• Industrial process control isolation

Procurement Notes

Verify the specific suffix X017T confirms the tape-and-reel packaging format required for automated assembly. Confirm RoHS compliance status matches project requirements. Ensure the manufacturer designation aligns with Vishay Semiconductor Opto Division specifications. Check for any regional certification markings such as VDE or UL on the final component marking.

Selection Notes

Select this component when high isolation voltage and fast switching are required without zero-crossing timing constraints. Compare against similar triac outputs if AC phase control precision is needed. Verify thermal dissipation capabilities match the PCB layout constraints. Ensure the 6-pin surface mount package fits the available footprint area.

Part Context

This part belongs to the IL420/IL4208 series of phototriac output optocouplers. These devices are designed to isolate low-voltage logic from high-voltage AC loads. The series offers robust performance in industrial and consumer applications requiring electrical isolation between control and power stages.

Replacement Considerations

Check datasheets for equivalent parts offering identical 5300Vrms isolation and 800V blocking voltage. Verify pinout compatibility for direct replacement in existing designs. Ensure thermal characteristics and package dimensions match the original specification.